The bottom of your chart seems to suggest that the data was collected across 2010 (Australia), 2011, 2012 and 2013. Plus, the UK came 10th out of 11 countries for 'healthy lives' - i.e. health outcomes.
Photo attached to show underfunding of NHS under Cons with lower annual increases in funding between 2010-2018
Why were Labour planning to make cuts to the NHS budget?
2009 - Alistair Darling spells out real terms cut to the NHS
The chancellor’s pre-Budget report translates into real terms cuts to the NHS budget from 2011-12 onwards, the chief economist of the King’s Fund has said.
https://www.hsj.co.uk/finance-and-efficiency/alistair-darling-spells-out-real-terms-cut-to-the-nhs-budget/5009496.article
2010 - Labour plans “£15-£20bn” of annual 'efficiency savings' for the NHS by 2013-14.
the cumulative ‘savings’ over four years would therefore be in the region of £50bn!
It’s highly unlikely to be achieved and so services will be in effect cut.
https://blog.policy.manchester.ac.uk/whitehallwatch/2010/04/nhs-efficiency-puzzle-solved-well-sort-of/